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<a href="#func-members">Functions</a>  </div>
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<div class="title">IRXmpUtils Namespace Reference</div>  </div>
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="func-members"></a>
Functions</h2></td></tr>
<tr class="memitem:a60f5e4774b9ff0e08ae54844b132d5fb"><td class="memItemLeft" align="right" valign="top">uint8_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="namespaceIRXmpUtils.html#a60f5e4774b9ff0e08ae54844b132d5fb">getSectionChecksum</a> (const uint32_t data, const uint16_t nbits)</td></tr>
<tr class="memdesc:a60f5e4774b9ff0e08ae54844b132d5fb"><td class="mdescLeft">&#160;</td><td class="mdescRight">Get the current checksum value from an XMP data section.  <a href="namespaceIRXmpUtils.html#a60f5e4774b9ff0e08ae54844b132d5fb">More...</a><br /></td></tr>
<tr class="separator:a60f5e4774b9ff0e08ae54844b132d5fb"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a170c46b9aa59d1717fdff6f932353dca"><td class="memItemLeft" align="right" valign="top">uint8_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="namespaceIRXmpUtils.html#a170c46b9aa59d1717fdff6f932353dca">calcSectionChecksum</a> (const uint32_t data, const uint16_t nbits)</td></tr>
<tr class="memdesc:a170c46b9aa59d1717fdff6f932353dca"><td class="mdescLeft">&#160;</td><td class="mdescRight">Calculate the correct checksum value for an XMP data section.  <a href="namespaceIRXmpUtils.html#a170c46b9aa59d1717fdff6f932353dca">More...</a><br /></td></tr>
<tr class="separator:a170c46b9aa59d1717fdff6f932353dca"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a0ada8200316c402f268dd621a3b0695a"><td class="memItemLeft" align="right" valign="top">uint64_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="namespaceIRXmpUtils.html#a0ada8200316c402f268dd621a3b0695a">updateChecksums</a> (const uint64_t data, const uint16_t nbits)</td></tr>
<tr class="memdesc:a0ada8200316c402f268dd621a3b0695a"><td class="mdescLeft">&#160;</td><td class="mdescRight">Recalculate a XMP message code ensuring it has the checksums valid.  <a href="namespaceIRXmpUtils.html#a0ada8200316c402f268dd621a3b0695a">More...</a><br /></td></tr>
<tr class="separator:a0ada8200316c402f268dd621a3b0695a"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:adbf7d8c8f73c5c9beca3094871d6a7c2"><td class="memItemLeft" align="right" valign="top">uint16_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="namespaceIRXmpUtils.html#adbf7d8c8f73c5c9beca3094871d6a7c2">calcRepeatOffset</a> (const uint16_t nbits)</td></tr>
<tr class="memdesc:adbf7d8c8f73c5c9beca3094871d6a7c2"><td class="mdescLeft">&#160;</td><td class="mdescRight">Calculate the bit offset the repeat nibble in an XMP code.  <a href="namespaceIRXmpUtils.html#adbf7d8c8f73c5c9beca3094871d6a7c2">More...</a><br /></td></tr>
<tr class="separator:adbf7d8c8f73c5c9beca3094871d6a7c2"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a25e2d3af57d86fecf7b01b6a0639d0cc"><td class="memItemLeft" align="right" valign="top">bool&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="namespaceIRXmpUtils.html#a25e2d3af57d86fecf7b01b6a0639d0cc">isRepeat</a> (const uint64_t data, const uint16_t nbits)</td></tr>
<tr class="memdesc:a25e2d3af57d86fecf7b01b6a0639d0cc"><td class="mdescLeft">&#160;</td><td class="mdescRight">Test if an XMP message code is a repeat or not.  <a href="namespaceIRXmpUtils.html#a25e2d3af57d86fecf7b01b6a0639d0cc">More...</a><br /></td></tr>
<tr class="separator:a25e2d3af57d86fecf7b01b6a0639d0cc"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a8e7705ba4373589a651e662a3debb0a8"><td class="memItemLeft" align="right" valign="top">uint64_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="namespaceIRXmpUtils.html#a8e7705ba4373589a651e662a3debb0a8">adjustRepeat</a> (const uint64_t data, const uint16_t nbits, const uint8_t repeat_code)</td></tr>
<tr class="memdesc:a8e7705ba4373589a651e662a3debb0a8"><td class="mdescLeft">&#160;</td><td class="mdescRight">Adjust an XMP message code to make it a valid repeat or non-repeat code.  <a href="namespaceIRXmpUtils.html#a8e7705ba4373589a651e662a3debb0a8">More...</a><br /></td></tr>
<tr class="separator:a8e7705ba4373589a651e662a3debb0a8"><td class="memSeparator" colspan="2">&#160;</td></tr>
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<h2 class="groupheader">Function Documentation</h2>
<a id="a8e7705ba4373589a651e662a3debb0a8"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a8e7705ba4373589a651e662a3debb0a8">&#9670;&nbsp;</a></span>adjustRepeat()</h2>

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          <td class="memname">uint64_t IRXmpUtils::adjustRepeat </td>
          <td>(</td>
          <td class="paramtype">const uint64_t&#160;</td>
          <td class="paramname"><em>data</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">const uint16_t&#160;</td>
          <td class="paramname"><em>nbits</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">const uint8_t&#160;</td>
          <td class="paramname"><em>repeat_code</em>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td>
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<p>Adjust an XMP message code to make it a valid repeat or non-repeat code. </p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramdir">[in]</td><td class="paramname">data</td><td>The value of the XMP message code. </td></tr>
    <tr><td class="paramdir">[in]</td><td class="paramname">nbits</td><td>The number of data bits in the entire message code. </td></tr>
    <tr><td class="paramdir">[in]</td><td class="paramname">repeat_code</td><td>The value of the XMP repeat nibble to use. A value of <code>8</code> is the normal value for a repeat. <code>9</code> has also been seen. A value of <code>0</code> will convert the code to a non-repeat code. </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>The valud of the modified XMP code. </dd></dl>

</div>
</div>
<a id="adbf7d8c8f73c5c9beca3094871d6a7c2"></a>
<h2 class="memtitle"><span class="permalink"><a href="#adbf7d8c8f73c5c9beca3094871d6a7c2">&#9670;&nbsp;</a></span>calcRepeatOffset()</h2>

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          <td class="memname">uint16_t IRXmpUtils::calcRepeatOffset </td>
          <td>(</td>
          <td class="paramtype">const uint16_t&#160;</td>
          <td class="paramname"><em>nbits</em></td><td>)</td>
          <td></td>
        </tr>
      </table>
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<p>Calculate the bit offset the repeat nibble in an XMP code. </p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramdir">[in]</td><td class="paramname">nbits</td><td>The number of data bits in the entire message code. </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>The offset to the start of the XMP repeat nibble. </dd></dl>

</div>
</div>
<a id="a170c46b9aa59d1717fdff6f932353dca"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a170c46b9aa59d1717fdff6f932353dca">&#9670;&nbsp;</a></span>calcSectionChecksum()</h2>

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          <td class="memname">uint8_t IRXmpUtils::calcSectionChecksum </td>
          <td>(</td>
          <td class="paramtype">const uint32_t&#160;</td>
          <td class="paramname"><em>data</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">const uint16_t&#160;</td>
          <td class="paramname"><em>nbits</em>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td>
        </tr>
      </table>
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<p>Calculate the correct checksum value for an XMP data section. </p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramdir">[in]</td><td class="paramname">data</td><td>The value of the data section. </td></tr>
    <tr><td class="paramdir">[in]</td><td class="paramname">nbits</td><td>The number of data bits in the section. </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>The value of the correct checksum. </dd></dl>

</div>
</div>
<a id="a60f5e4774b9ff0e08ae54844b132d5fb"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a60f5e4774b9ff0e08ae54844b132d5fb">&#9670;&nbsp;</a></span>getSectionChecksum()</h2>

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          <td class="memname">uint8_t IRXmpUtils::getSectionChecksum </td>
          <td>(</td>
          <td class="paramtype">const uint32_t&#160;</td>
          <td class="paramname"><em>data</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">const uint16_t&#160;</td>
          <td class="paramname"><em>nbits</em>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td>
        </tr>
      </table>
</div><div class="memdoc">

<p>Get the current checksum value from an XMP data section. </p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramdir">[in]</td><td class="paramname">data</td><td>The value of the data section. </td></tr>
    <tr><td class="paramdir">[in]</td><td class="paramname">nbits</td><td>The number of data bits in the section. </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>The value of the stored checksum. </dd></dl>
<dl class="section warning"><dt>Warning</dt><dd>Returns 0 if we can't obtain a valid checksum. </dd></dl>

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<a id="a25e2d3af57d86fecf7b01b6a0639d0cc"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a25e2d3af57d86fecf7b01b6a0639d0cc">&#9670;&nbsp;</a></span>isRepeat()</h2>

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          <td class="memname">bool IRXmpUtils::isRepeat </td>
          <td>(</td>
          <td class="paramtype">const uint64_t&#160;</td>
          <td class="paramname"><em>data</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">const uint16_t&#160;</td>
          <td class="paramname"><em>nbits</em>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td>
        </tr>
      </table>
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<p>Test if an XMP message code is a repeat or not. </p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramdir">[in]</td><td class="paramname">data</td><td>The value of the XMP message code. </td></tr>
    <tr><td class="paramdir">[in]</td><td class="paramname">nbits</td><td>The number of data bits in the entire message code. </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>true, if it looks like a repeat, false if not. </dd></dl>

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</div>
<a id="a0ada8200316c402f268dd621a3b0695a"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a0ada8200316c402f268dd621a3b0695a">&#9670;&nbsp;</a></span>updateChecksums()</h2>

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          <td class="memname">uint64_t IRXmpUtils::updateChecksums </td>
          <td>(</td>
          <td class="paramtype">const uint64_t&#160;</td>
          <td class="paramname"><em>data</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">const uint16_t&#160;</td>
          <td class="paramname"><em>nbits</em>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td>
        </tr>
      </table>
</div><div class="memdoc">

<p>Recalculate a XMP message code ensuring it has the checksums valid. </p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramdir">[in]</td><td class="paramname">data</td><td>The value of the XMP message code. </td></tr>
    <tr><td class="paramdir">[in]</td><td class="paramname">nbits</td><td>The number of data bits in the entire message code. </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>The corrected XMP message with valid checksum sections. </dd></dl>

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